nB(2)F(WS)
|
P |
Q |
R
|
S
|
T
|
v
|
QO˖
|
S
|
R
|
R
|
S
|
R
|
PV
|
SO˖
|
S
|
S
|
S
|
R
|
S
|
PX
|
UO˖
|
S
|
S
|
R
|
S
|
R
|
PW
|
WO˖
|
S
|
R
|
R
|
Q
|
R
|
PT
|
POO˖
|
R
|
R
|
S
|
Q
|
R
|
PT
|
v
|
WS
|
@
acI (3)FiVTj
P | Q | R | S | T | v | |
QO˖ |
Q
|
R
|
S
|
R
|
S
|
PU
|
SO˖ |
R
|
R
|
R
|
Q
|
S
|
PT
|
UO˖ |
R
|
Q
|
R
|
R
|
S
|
PT
|
WO˖ |
S
|
Q
|
R
|
Q
|
S
|
PT
|
POO˖ |
Q
|
Q
|
Q
|
S
|
S
|
PS
|
v |
VT
|
@